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Baby No. 2 on the way! Hilaria and Alec Baldwin are expecting

Hilaria Baldwin

The year 2015 is going to be an extra special one for the Baldwins!

Alec Baldwin's wife, Hilaria Baldwin, is pregnant!

The 30-year-old yoga instructor posted a photo of her happy family, including the 56-year-old actor, their 1-year-old daughter Carmen and their two dogs on her Instagram page on Jan. 1, New Year's Day. It shows their child placing her tiny hands on her mom's belly.

"The sun has set on 2014 and on my year of daily #hilariaypd ....2015 is going to be very exciting as we are thrilled to announce we are expecting another little addition to our family! (tadasana) #yogapostureoftheday," she wrote.

"2015 equals Mommy, Daddy, Carmen and a special guest star...." Alec tweeted.

VIDEO: Alec Baldwin and Hilaria's daughter Carmen, 1, is walking—watch!

Hilaria, who married Alec in 2012, frequently poses photos of herself doing yoga poses in various places, sometimes with the help of her husband and her daughter.

"Waking up on the morning of New Year's Eve, I am filled with both excitement and sadness," she wrote on Instagram on Dec. 31. "We will create new lives and we will lose precious ones, we will have moments of bliss and ecstasy, and ones of deep sadness and fear, some of our dreams will come true, and others will be destroyed...One thing about life is: the moment we step into its journey, who knows how rocky or peaceful the path will be."

PHOTOS: Yoga Mamas! Gisele Bündchen and Hilaria Baldwin show serious flexibility

Hilaria had just one week ago posted on her Instagram page a photo of a positive pregnancy test, saying it was an old pic.

"Don't get's a #throwback," she wrote. "Two years ago today we found out that Carmen was on her way!! Our greatest Christmas present...the gift that keeps on giving. This was the pic that we snapped to tell our family."

Alec also shares a 19-year-old daughter, Ireland Baldwin, with ex-wife Kim Basinger, 61.

PHOTOS: Hot TV star dads holding babies